Magebane Poison (Patreon)

Potion, very rare

This dark, bubbling poison is made from a rakshasa's magic-immune blood and tastes sweet and syrupy, despite its gruesome appearance. Each bottle contains one dose of the poison. A creature that ingests this poison must make a DC 19 Constitution saving throw. On a failed save, a creature takes 4d6 poison damage and is poisoned for 1 hour. If the poisoned creature is a spellcaster, it takes an additional 4d6 psychic damage and can't cast cantrips until this poison ends. In addition, a poisoned spellcaster can only cast spells of 1st level and higher by using a spell slot at least 4 levels higher than the desired slot level, without the added benefits of using the higher spell slot level. For example, a poisoned spellcaster can cast the 2nd-level version of magic missile using a 6th-level spell slot. On a successful save, a creature takes half as much poison and psychic damage and isn't poisoned.

"Could you describe your experience? What does it feel like, to be disconnected from the arcane? Please be descriptive, as this may be submitted to journals for posterity."

"Aaaarrrghhhhhh!!!"

"Mhmm, I see."